The invention relates to the technical field of geological disaster monitoring and discloses a four-system (4S) integrated deformation monitoring system. The 4S integrated deformation monitoring system comprises a deformation monitoring station and a data center, wherein the deformation monitoring station is composed of a deformation monitoring station host machine and a wind-light integrated field power source, the data center is connected with the deformation monitoring station through a communication network, and the data center is used for carrying out fusion processing on global position system (GPS) data from the deformation monitoring station, geographic information system (GIS) data and remote sensing (RS) data and controlling the deformation monitoring station. The 4S integrated deformation monitoring system is high in precision and reliability, full-featured, low in cost, capable of monitoring and being maintained in an overall, real-time, remote, automatic, synchronous, long-term, continuous, stable and low-running-cost mode, easy to popularize, and capable of being applied to deformation monitoring and deformation early warning of quick deformation type, slow deformation type and overall process type geological disasters.